What question did this study set out to answer?

This study investigates how renal sympathectomy affects blood pressure and plasma renin activity in hypertensive and normotensive rats.

July 1, 1982Acta Physiologica Scandinavica

The effect of renal sympathectomy on blood pressure and plasma renin activity in spontaneously hypertensive and normotensive rats

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Why the study?

Does bilateral surgical renal sympathectomy reduce blood pressure and plasma renin activity in spontaneously hypertensive and normotensive rats?

Population

Spontaneously hypertensive (SH) and normotensive rats weighing 170-180 g before sympathectomy

Comparison

Bilateral surgical renal sympathectomy vs Sham-operated controls

Design

Preclinical

Follow-up

4 weeks (30 days)

Authors

PSP SäynävälammiTampere University of Applied Sciences AVAnnikki VaalastiTampere University Hospital MPMaija-Liisa PyykönenTampere University

Discussion

Member takes

Implication

May blunt hypertension progression in this model without renin involvement; leaves open mechanisms and human translation.

Key Points

This study investigates how renal sympathectomy affects blood pressure and plasma renin activity in hypertensive and normotensive rats.
Bilateral surgical renal sympathectomy performed on spontaneously hypertensive and normotensive rats.
Blood pressure and plasma renin activity measured pre- and post-surgery, verified by fluorescence microscopy.
Four-week follow-up to assess changes in blood pressure and plasma parameters.
Blood pressure in spontaneously hypertensive rats increased insignificantly from 160 ± 3 to 172 ± 6 mmHg after sympathectomy (p>0.05).
Sham-operated spontaneously hypertensive rats showed a significant rise in blood pressure from 163 ± 5 to 191 ± 5 mmHg (p<0.05).
Plasma renin activity did not differ between renal-sympathectomized and sham-operated groups in either rat type.

Structured PICO

Does bilateral surgical renal sympathectomy reduce blood pressure and plasma renin activity in spontaneously hypertensive and normotensive rats?

Population

Spontaneously hypertensive (SH) and normotensive rats weighing 170-180 g before sympathectomy

Intervention

Bilateral surgical renal sympathectomy

Comparator

Sham-operated controls

Outcome

Blood pressure and plasma renin activity at 4 weeks (30 days)surrogate

Renal sympathectomy delays the development of hypertension in spontaneously hypertensive rats, but this effect is not mediated by a reduction in renin secretion.

Cite This Study

Säynävälammi et al. (1982) studied this question.

synapsesocial.com/papers/6a76517270b84e52bb880181 https://doi.org/10.1111/j.1748-1716.1982.tb07080.x

Topics

Hypertension management

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The effect of renal sympathectomy on blood pressure and plasma renin activity in spontaneously hypertensive and normotensive rats

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

The effect of renal sympathectomy on blood pressure and plasma renin activity in spontaneously hypertensive and normotensive rats

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Topics

Also Consider